Typewriting machine



May 1, 1928.

B. C. STICKNEY TYPEWRITING MACHINE Filed Dec. 6. 1924 5 Sheets-Sheet 1May 1, 1928.

B. C. STICKNEY TYPEWRITING MACHINE Filed Dec. 192

l 3 Sheets-Sheet 2 I 1-! I lnvenfor:

B. C. STICKNEY TYPEWRITING MACHINE May I, 1928. 1,668,175

Filed Dec. 6. 1924 3 Sheets-Sheet 5 /n Yen far:

Patented May 1, 1928.

TED

PATENT oi-"rlc.

BURNHALM C. STiGKNEY, 0]? RUTHERFORD, NEW' JERSEY, ASSIGNOR T ll'unnnawoon ELLIOTT FISHER CDMPANY, 01* NEW YORK, N. Y., 145. CORPORATION01E DELAW'ARE.

rrrrswnrrrn'e- Machine.

application filed December G, 19%. Serial 1W0. 754,289.

This invention relates to typewriting machines in which the plies ofwork-web made up of printed forms, either fan-folded or otherwise, andinterleaved with carbons, are typed simultaneously; relative shifting ofthe carbons being etfected from the typed forms to new forms as thetyping proceeds. In this class of manifolding typewriters thecylindrical platen of the machine has been elevated as a preliminary tostraightening out the web, so as to render shifting of the carbonspossible, and it is one of the objccts of the present invention toprovide simply and economically for avoiding the necessity of soelevating the platen, and for shifting the carbons relative to theworkweb. According to the present invention a loop of loose work-web andinterleaved carbons is established at the rear of the machine, to permitfree movement of the carriage in both directions during typing of theforms, and mechanism is included for straightening out the web in flatcondition so as to permit easy shifting of the carbons, and it isanother object of the present invention to provide a simple, inexpensivedevice of this character which may be readily attached to any standardtypewriting machine, either old or new, or readily detached. The machinemay be used in its ordinary way if desired, first casting off thecomposite web from the platen. The loop-establishing mechanism includesa carboircarricr, which also provides a support for the rear portion ofthe work-web as the same rises from a stack at the rear of the machineand is fed around the platen. This carbon-carrier is stationary as theplaten-carriage travels. \Vheu the loop-establishing mechanism is thrownrearwardly of the machine the webplies are straightened out,facilitating carbon-shifting operations. The loop swings from side toside as the carriage travels to and fro, one end of the loop beingstationary and the other end traveling with the carriage. The loop alsoaffords a length of composite web to be taken up by the platen at theline-spacing operations during the typing of a form.

Another feature of the invention is the provision of means'preferably inthe form of a handle for shifting the carbon-carrier rearwardly, meansbeing provided for limiting the throw of the handle for different It isnecessary in machines of this kind to determine the first line of typingfor the forms, and another feature of the invention is the provision ofmeans for gaging the leading edge of the web as it is brought upwardlyand over the platen.

Another feature of the invention is the provision of an index-device forboth gaging the leading edge of the web and for determining the amountof margin to be left at the top of a form, said gage being adjustable toaccommodate various lengths of printed forms.

A further feature of the invention is the provision of side-edge guidesadjacent the rear of the introductory papertable for guiding the web asit is brought to position around the platen, and for preventing said webfrom bulging or buckling away from the table and toward the platen, whenthe loop is being establish d at the rear of the machine.

Other features and advantages will hereinafter appear.

In the accompanying drawings,

Figure 1 is a diagrammatic transverse sectional view of a typewritingmachine, showmg my invention applied thereto, the workweb being shown inthe position with a loop established behind the machine.

Figure 2 is a diagrammatic sectional view, showing the carbon-carrierwithdrawing the web and interleaved carbons bodily around the platen,the leading edges of the carbons emerging from between the platen andrear feed-roll of the machine.

Figure 3 is a front elevation of a typewriting machine, showing myinvention applied thereto.

' Figure 4 is a fragmental View of my improved carbon-holder and itsmeans of at-' tachment to the mechanism.

Figure 5 is a View similar to Figure 1 taken on the line 5-5 of Figure3, an showing the carbon-carrier thrown to its rearmost position, theweb straightened out and the carbons shifted back from. typed Bit formsto position between ,fresh forms of v the web.

Figure 6 is a detail sectional new of a paper-table and leading-edgegage, on the line 6-6 of Figure 3.

Figure 7 is a perspective view of a side guide for the edges of thework-web.

Figure 8 is a view of a shiftable sheet having a short length of carbonattached thereto.

I have used the reference character 10 to designate generally the frameof a typewriting machine. A platen 11 is fixed upon the usuallaten-shaft 12, which is mounted in the ends 13 of a platen-frame 14,the latter forming a part of a traveling carriage 14', and front andrear feed-rolls 15 and 16 normally bear against the platen to hold awork-sheet thereto, and enable the same to be fed around the platen.Suitable release mechanism, not shown, but which may be of the usualtype well know-n in the art, isused for releasing said rolls from the,platen when desired, and type 17 are driven against the platen in theusual way. An introductory paper-table 18 extends upwardly andrearwardly from the platen and may be formed with a rounded head 19 atthe top edge thereof, so as to form a smoothedge over which work-sheetsmay be fed or rest. Thus far the description is that of the usualstandard typewriting machine, and is given here simply for a clearunderstanding of the manner in which the present invention is appliedthereto, for converting the machine to use for continuous billingpurposes.

Manifolding machines employing a nonswingable platen usually handle aweb made up of multiple plies, either fan-folded or otherwise, but, dueto the factthat the leading portion of the web is in, connection with;the platen, while the rear portion of the web is generally heldstationary usually by means of a carbon-holding support, it is necessaryto establish a loop of loose web at the rear of the machine to permitfree carriage-movements of the platen without interfering with the web.For accomplishing this purpose there is provided at the rear of themachine a. framework which may comprise a pair of angle-iron frames,such as indicated at 20, extending under the main frame-beams 21 of thetypewriter-frame 10, and held to said frame-beams by means of the usualscrews which hold the typewriter-feet 22 to the machine. The frameextends rearwa-rdly and upwardly as indicated at 23, and terminates at apoint approximately on a plane slightly above the typewriting machine.Work-web-supporting arms 24 are pivoted at 25 to the rearwardly andupwardly extending portion 23 of the frame 20, so as to be swingableforwardly and rearwardly of the machine. to establish a loop of loosework-web W and interleaved carbons C, or straighten out the same.

The free ends of the arms 24 are turned over at right angles, as shownat 26, to provide means whereby a carbon-holding frame 27 may beattached by screws or rivets 28.

rod 31 extends therebetween to fasten thefree ends of the arms together,and provide a guide or support for the web W.

For giving the arms 24 movement back- Wardly and forwardly, there ismounted preferably upon the left-hand side of the frame 20 a lever 33pivoted at 34, so as to swing forwardly and rearwardly at the side ofthe machine. A handle 35 may be pro vided to facilitate movement of thelever 33,

' and a link 36, which may be connected by a pin or screw 37 to thelever 33, extends rearwardl and upwardly to one of the arms 24 where 1tmay be likewise connected thereto by a in or screw as indicated at 38.

In or er to accommodate the mechanism to different lengths of work-webunits or form-sections, it is necessary to provide some means forlimitingthe rearward throw of the arms 24 for said different lengths offorms, and for this purpose there is provided a segment 39 pivoted tothe lever 33 at 40, and provided with a radial slot 41 and a thumb-screw42, passing through the slot and threaded'into the lever 33, so that thesegment 39 may be turned angularly about the pivot 40, and clamped in,any adjusted position. The segment has a series of teeth or notches 43at graduated distances from the pivotal point 40, and a pin 44, fixed toa plate 45 which is secured upon the frame 20, is arranged to engage oneof said notches to limit'the throw of the arms 24. A stop 46 engages thelever 33 when thrown forwardly to the loop-forming position-of the arms24 (see Fi re 1). l

A ta le 47 maybe provided upon the frame 20 adjacent the lower rearportion of the machine for supportingthe lower portion of the work-webloop as clearly shown in Figure 5. The work-web WV is fed upwardly froma pack at the rear of themachine, and rises over the rounded apron 29 ofthe carbon-carrier, thence between the usual carbon-carrying blades 48and downwardly to the platen 11 where the leading edge of the web isentered between the platen and the feed-rolls.

The work-web is fed upwardly for gaging the leading edge thereof, so asto determine the typing int of succeeding web-forms, and for indicatingthe-position for holding said leading edge while "the carbons areshifted relatively to the work-web. For thus gaging the work-web, atable 49, in cluding a. pair of side wings 50 having elonlit gated slots51 therein, is mounted adjacent ends 13 of the platen-frame 14, thebrackets 52 having upstanding extensions 53 providing a support tor arod 54 which extends through suitable perforations in the wings ot thetable 49. The lower portion of the wings 50 may be notched as at 55, soas to be received upon the usual puper-tinger rod 56 which extendsparalleladjacent the rear of the platen ll. Collars 57 are mounted uponthe rod 54, and may be held in position by means oi set screws 58 forsecuring the table 459 in position. Thus it will be seen that while thetable 49 is rigidly secured in position over the platen, said table maybe easily removed from the machine by simply detaching" the brackets 52and lifting the notched portions clear of the rod 56.

The table 49 is marked oil into gradua tions 59 which representditierent positions torbringing the leading edge of work-webs havingditterent form-lengths. A slidable member 60 includes wings 61 bentrearwardly, so as to overlie the wings 50 ot' the table 49, and pins 62carried by said member are arranged to ride in the slots 51 and act asguides during the vertical movement of the member 60. The upper portionof each of the wings 61 has a threaded perforation for the reception ofthumb-screws 63, which pass through the corresponding slot 51 of thewings 50 and are effective to clamp against the inner sides of saidwings to hold the member 60 in adjusted position on the table 49.

The member 60 also includes a l nite-edge 64 extending parallel with theplaten, and

against which completed forms are severed from the body of the work-web.A series oi vertically-arranged graduated marks ()5 is carried by themember 60 and represent marginal depths to be left at the top of the v\VQb-fOlll'iS to be typed upon iii the machine. An index device 66 has aslot 67 through which a thumb-screw 68 passes into threaded relationwith a suitable perforation in the member 60. The index-device includestwo index-fingers, respectively 69 and 70, which are arranged to bebrought into register respectively with the graduated marks and 59 todetermine the depth of marginal heading for a form and the position forholding the leading edge of the work-web while the carbons are beingshifted.

Figure 1 shows the position of the various parts of the mechanism duringa typing operation. It will be noted that the carbons C have beenbrought to a position, slightly above the printing line of the platen.so as to print typed impressions on all of the webs,

the first line of writing being shown at the printing point in thisfigure. At this time there extends above this new section of web twotyped forms which have been completed, one of said sections extendingimmediately above the new section to be typed and teaurinating at theknife-edge 64, the other section extending above the knife-edge to anadjustable leading-edge gage 71, which determines the first line oftyping tor the new section of forms. The section of torms above theknife-edge is nowtorn off against said edge prior to beginning typingthe new terms.

After the uppermost form typed has been thus torn oil from the web theform immediately thereunder is permitted to teed upwardly as typingproceeds upon the new forms, and paper-lingers or rollers 11 adjacentthe tront of the platen ll guide the web as the same is fed upwardly.

it will be noted that during typing of each section, there is a loosework-web loop established at the rear oi the machine, such as indicatedat WV, and which depends from the paper-table 18 at one end, and fromthe earbon-carrier 27 at the other end, thus permitting tree movement ofthe carriage during typing operations. As typing proceeds and the web isline-spaced the loop is progressively shortened as indicated at W, but

"there is always suitioient length of loop left hanging to permit freemovement of the carriage.

In shifting the carbons from typed forms to new forms, the carriage isfirst shifted to a position centrally of the machine so that the carbonsmay be drawn straight back therefrom, said position being readilydetermined by a gagepiece 7 5 fixed to the carriage and arranged to bebrought into register with an index 76 fixed upon the usualfront-scale-bar of the machine as illustrated in Figure 3. The handle 35of the lever 33 is then swung rearwardly of the machine, thereby causingthe arms 24 to move rearwardly and upwardly to straighten out the web.During this movement the web and carbons have been simultaneously moveddownwardly along the table 49, anc, when they have reached theindex-linger 70, the web is held against the table 49 to prevent anyfurther downward i'novement thereof. At this point the carbons have justmoved from beneath the platen and are in flat concushioning the rearwardthrow of the arms 24, there may be provided upon one of the frames 20 acurved spring 23' arranged to tion for the entiredistance between thepoint of connection of the web with the platen to the carbon-carrier,thereby permitting free movement of the carbons in a straight line'rearwardly with respect to the web.- During all of the shiftingoperationsthus described, the feed-rolls have been cast off, so as topermit uninterrupted passageof the web around the platen. When thehandle 35 has been pulled forwardly against the stop 46 the arms 24 havedropped to the position indicated in dot-and-dash lines in Figure 5, tore-establish the loo For guiding the work-web IV use may be made of apair of gage-pieces 18, each including a curved lip 19' forengagementaround the head 19 of the paper-table 18, a side wall 20' forthe sideedges of the workweb and a finger 21 overlying said web toprevent the same from buckling toward the platen when the loop is beingformed.

When bringing a new section or form of the work-web to typing position,the leading edges of the web may be fed u -wardly by hand, clearancebeing permitte by reason of a cut-away portion 60 adjacent the righthandside of the .member 60, the web being advanced upwardly until it reachesthe gage 71. The feed-rolls 15 and 16 are then thrown on; the section ofweb above the knife 64 is severed thereagainst, and typing upon the newform may be proceeded with.

In the interest of economy the carbon-sheet may be made up in "a mannersuch as indicated in Figure 8, in which a sheet of ordinary paper72, orthe like, has attached thereto a short strip of carbon 73 adjacent thelower end thereof by any suitable means, such as a gummed strip or tape74, although this is not essential to the invention as a full lengthstrip of carbon may be used if desired. I

It will be seen from the foregoing description that the presentinvention involves an extremely simple mechanism which may be readilyattached to any machine without alteration thereto, thus making Itpossible to use the machine in its ordinary way, while at the same timemaking the machine quickly convertible to use for continuous billingpurposes.

It is obvious that instead of holding the leading portion of the webagainst the table 49 by hand" durin the carbon-stripping operation, thefee -rolls 1516 may be thrown on to clamp the web against the platen,the carbons being clear of the platen;

or else a clamp such as that shown by my Patent No. 1,582,438, datedApril 27, 1926, may be used.

ary while the carriage travels, the front end of the loop beingconnected with the platen, said support movable rearwardly to straightenout said work-web in flat ,condition throughout the length thereof fromsaid platen to said sup ort, whereby to facilitate shifting of the carons from a typed section of said work-web to a new section thereof.

2. In a typewriting machine, the combination of a rotatable platen, atraveling carriage therefor, and a swingableframe at the introductoryside of said platen for supporting the rear end of a composite loop ofmultiple-ply work-web and carbons, the front end of the loop extendingbeneath the platen, said frame being swingable rearwardly to an extentto straighten out said work-webiii flat'condition throughout the lengththereof from said platen to said frame, whereby to tion thereof, andbeing further swingable rearwardly to strip the carbons while thework-web remains around the platen; said swingable frame beingstationary during the letter-feeding movements of the carriage.

3. In a typewriting machine, the combination of a rotatable platen, atraveling carriage therefor, a swingable support at the introductoryside of the platen for supporting the rear end of a composite loop ofmultipleply work-webvand carbons, the front end of the loop beingconnected with the platen, said support being stationary while thecarriage travels, and bein movable rearward-. 1y to straighten out saiweb in flat condition throughout the length thereof from said platen tosaid support, whereby to facilitate shifting of the carbons from typedsections of the Work-web to new sections thereof, and

adjustablestop means limiting the rearward throw of said support.

4. In a typewriting machine, the combination of a rotatable platen, atraveling carriage therefor, a detachable frame fixed to said machineand extending rearwardly therefrom, a movable carbon-carrying sup- 7port pivoted to the rear of said frame whereby to rock forwardly andrearwardly from the introductory side of said platen, a bandle ivoted tosaid frame adjacent one side of t e typewriter, linkage connecting saidhandle with said support, a pin fixed to the frame, and an adjustabledetent carried by ill Leeann said handle and arranged to engage said pinto control the rearward throw of said support, so thatwhen said supportreaches the rearward limit of its throw the plies of a work-web andinterleaved carbons held at one end by said platen and supported at theother end by said support are straightened out in fiat condition.

5. In a typewriting machine, the combination of a rotatable platen, atraveling carriage therefor, a detachable frame fixed to said machineand extending rearwardly and upwardly therefrom, a swingable framepivoted to the rear of the upwardly-extending portion of said detachableframe, so as to swing forwardly and rearwardly with respect to themachine, a handle pivoted upon said detachable frame adjacent one sideof the machine, linkage connecting the handle to the support, adjustablemeans for varying the rearward throw of said support when said handle ismoved rearwardly, and a cushioning device associated with the rear ofsaid detachable frame and effective to co-operate with said support tocushion the rearward movements thereof.

6. In a typewriting machine, the combination of a rotatable platen, atraveling carriage therefor, a detachable frame fixed to said machineand extending rearwardly and upwardly therefrom, a swingable framepivoted to the rear of the upwardly-extending portion of said detachableframe, so as to swing forwardly and rearwardly with respect to themachine, a handle pivoted upon said detachable frame adjacent one sideof the machine, linkage connecting the handle to the support, anadjustable detent for varying the rearward throw of said sup ort whensaid handle is moved rearward y, and a cushioning spring associated withthe rear of said detachable frame and effective to cooperate with saidsupport to cushion the rearward movements thereof.

7 In a typewriting machine, the combina tion of a rotatable platen, atraveling carriage therefor, and a movable support at the introductoryside of said platen for supporting the rear end of a composite loop ofmultiple-ply work-web and carbons, the front end of the loop beingconnected with the platen, said support being stationary during thecarriage travel and swingable rearwar'dly and upwardly from said platento straighten out the length of web extending between the platen andsaid support.

8. In a typewriting machine, the combination with a rotatable platen, atraveling carriage therefor, and an introductory papertable, of amovable support at the rear of said platen for supporting the rear endof a composite loop of multiple-ply work-web and carbons, the front endof the loop being connected with the platen, said support beinstationary during the carriage travel an swingable rearwardly andupwardly to straighten out the work-web in flat conditron to facilitateshifting of the carbons, said support being so mounted that saidwork-web when straightened is substantially in a plane with the surfaceof said introduc tory paper-table it, in a typewriting machine, thecombinatlon of a rotatable platen, a traveling can riage therefor, adetachable frame fixed to said machine and extending rearwardlytherefrom, and a support pivoted upon said rearwardly-ertending framefor supporting a composite loop of multiple-ply workwveb and carbons,the front end of the loop being held by the platen, said supportswingable forwardly to establish said loop and swinga-ble rearwardly forstraightening out said work-web and carbons in a plane substan tiallyparallel with the plane of said introductory paper-table and clearingthe same, whereby to permit easy shifting of said carbons relative tosaid work-web.

It). In a typewriting machine, the combination of a rotatable platen, atraveling carriage therefor, a detachable frame secured to said machineand extending rearwardly therefrom, a movable support pivoted to saidframe and swing-able forwardly andrearwardly with respect to themachine, said support being effective to support the rear end of acomposite loop of multiple-ply work-web and carbons, the front end ofthe loop being connected wtih the platen, means for swinging saidsupport forwardly and rearwardly, means for limiting the rearwardposition of said support, and a table fixed to said frame and upon whichthe lower portion of the loop rests when said support has been thrownforwardly and downwardly toward the machine to re-establish said loop.

11. In a typewriting machine, the combination of a rotatable platen, atraveling earriage therefor, a detachable frame secured to the frame ofthe machine and extending rearwardly and then upwardly therefrom, amovable support pivoted to the rear of said detachable frame, a handlepivoted to the forward portion of said detachable frame, a connectionbetween the handle and the support, an abutment fixed to said detachableframe, an adjustable stop device carried by said handle and arranged toengage said abutment to limit the throw' of said support when the handle1s thrown rearwardly, said support arranged to support the rear end of aGOIIIPOSltB loop of multiple-ply work-web and carbons, the front end ofthe loop the platen, said handle when thrown rearwardly causing saidsupport to move rearwardly and upwardly, whereby to straighten out saidwork-web and carbons in flat condition from said platen to said support,so that the carbons may be easily shifted from being connected with TillTill? extends around the platen, of a gage adjacent the front of theplaten for determining the position for holding the leading edges ofsaid work-web while said carbons are shifted relatively thereto, saidgage being adjustable for determining said holding positlon fordifferent lengths of form units to be severed from the web, and a gagecooperating with said first-mentioned gage for determining the .depth ofmargin for any of said different lengths of form units.

table adjacent the front of the 13. The combination with a typewritingmachine including a platen, means for feeding a work-web and interleavedcarbons therearound, and means at the introductory side of the platenfor shifting said carbons relatively to the work-web, while the latterextends around the platen, of a table extending above the platen, agage-piece adjustable upon said table, means for securing said gage inadjusted position, said gage determining the position for holding theleading edges of said work-web while the carbons are shifted relativelythereto, a Web-severing knife upon said table, and a gage fordetermining the depth of margin to be left at the upper edges of typedforms to be sevcred from the web.

14. The combination with a typewriting machine including a platen, meansfor feeding a work-web and interleaved carbons therearound, and meansfor shifting said carbons relatively to the work-web, of a laten andincluding a scale, a slidable kni e-carrying member verticallyadjustable with relation. to said table, said member also including ascale, and-an index deviceadjustably mounted upon said member and havingindex fingers, one of saidifingers settable for gaging the leading edgeof different lengths of forms to be typed in the machine and severedfrom the web against the knife, said second scale co-operating with theother of said index fingers for determining the depth of margin for anyof said forms gagedby 7 said first-named scale.

15. The combination with a typewriting machine including a platen, meansfor feeding a work-web and interleaved carbons therearound, and means atthe introductory lid. of the platen and including a looper in rear ofthe platen for shifting said car-- bons relatively to said work-web,while the [latter is around the platen, of gage means adjacent the frontof the platen settable to determine the position of the leading edge ofsaid work-web while the carbons are being shifted, and means for gagingthe depth of headings of sections of said work-web to be detached fromthe main body thereof.

16. The combination with a typewriting machine including a platen, meansfor feeding a work-web and interleaved carbons therearound, and meansfor shifting said carbons relatively to the work-web, of a detachableframe secured adjacent the upper portion of the platen and including atable for the reception of the leading edges of said work-web, saidframe having slots adjacent the sides thereof, a member overlying saidtable and slidable within said slots, means for securing said member inadjusted relation upon said frame, said table and slidable member, eachhaving a vertically-arranged scale, and a slidable index deviceincluding pointers adjustable upon said slidable member to register withboth of said scales whereby to determine the position for holding theleading edge of said work-web while the carbons are being shifted, andfor predetermining the depth of margin to be left at the top of sectionsof said work-web to be severed from the main body thereof.

17. The combination with a typewriting machine including a platen, meansfor feeding a work-web and interleaved carbons therearound, and means atthe intake side of the machine for shifting said carbons relatively tothe work-web, of a work-table at the,delivery side of the platen, aknifecarryingrgage-plate adjacent the front of the work-table andagainst which sections of said work-web are severed, said gageplatebeing cut away, adjacent one side thereof over said table providingclearance, whereby saidweb may be handled and fed upwardly over saidtable to bring new sections of the web to typing position, and a gagefor the leading end of the web.

18. The combination with a typewriting machine including a platen, meansfor feeding a work-web andinterleaved carbons therearound, and means atthe intake side of the machine for shifting said carbons relatively tothe work-web, of a work-table at the deliver side of the platen, aknifecarrying mcm er adjustably mounted upon saidwork-table, said memberincluding gage means for setting the knife to the tearingofi' line fordifferent lengths of sections to be severed from the main body of theworkwep, and a gage for the leading" end of the we 19. The combinationof a rotatable platen, a traveling carriage therefor, and a movablesupport at the introductory side of said platenfor the rear end of acomposite loop of multiple-ply work-web and carbons, the front end ofthe loop being connected with the platen, said support being stationaryas the carriage travels and movable rearwardly to straighten out saidWork-web to flat con dition throughout the length thereof from saidplaten to said support, whereby to facilitate shifting of the carbonsfrom typed sections of said work-web to new sections thereof,flexiblesheets or tabs being secured at their rear ends to said movablesupport to carry said carbons at their forward ends 20. In a typewritingmachine, the combination of a rotatable p'laten, a traveling carriagetherefor, a releasable web-detaining clamp at the delivery side of theplaten, and a swin-gable carbon-stripping frame at the introductory sideof said platen for supporting the rear end of a composite loop ofmultiple ply work-web and carbons, said frame stationary as the carriagetravels, the frontend of the loop extending beneath the platen, saidframe being effective at the first portion of its rearward movement towithdraw said web and carbons simultaneously to a position in which thecarbons emerge from beneath the platen while said clamp is released, andthen being effective upon the last portion of its rearward movement toshift said carbons to new sections of the web, while the leading edge ofthe web is being detained by said clamp.

21. In a typewriting machine, the combination with a rotatable platen,of a traveling carriage therefor, and a frame detaehably mounted uponthe lower portion of the framework of said machine and extendingrearwardly and upwardly therefrom, said frame being stationary duringthe traveling of the carriage and having a support pivoted at a pointadjacent the plane'of the upper portion of said machine, said supporteffective to support the rear end of a composite loop of loosemultiple-ply work-web and interleaved carbons, the front end of the loopbeing connected with the platen,

I the support when thrown forwardly toward the machine being effectiveto establish the loop of loose web therebehind, so as to permit freecarriage movements of the platen, and when swung rearwardly beingeffective to straighten out said loop in flat condition, whereby thecarbons may be readily shifted from typed portions of the web to untypedportions thereof.

22. In a typewriting machine, the combination with a rotatable platen, atraveling carriage therefor, and an introductory paper-table, of aswingable frame pivoted upon the rear of the machine-framework at apoint above the plane of the carriage, to be stationary while thecarriage travels, said frame supporting the rear end of a multiple-plywork-web and interleaved carbons, the front end of the web beingconnected with the platen, said frame when thrown forwardly beingeffective to establish a loop of loose web behind the platen to permitfree carriage movements thereof, and when thrown rcarwardly beingeffective to straighten said web and carbons in flat condition, andinclining said web upwardly and rearwardly in a plane above the uppersurface of said introductory paper-table, so that said web is in flatcondition from its point of connection with the platen to its point ofsupport on said swingable frame, whereby said carbons may be easilyshifted with respect to the work-web.

23. The combination with a typewriting machine having a platen, and atraveling carriage, of a swingable frame at the rear of the machinearranged to support the rear end of a multiple-ply work-web andinterleaved carbons, the front end of said Web being connected with theplaten, said frame stationary while the carriage travels and swingableforwardly to establish a loop behind the machine, and movablerearwar'dly to straighten said web and carbons to flat condition andmounted to incline the same upwardly and rearwardly of the machine whensaid frame is in its rear position;

24:- In a typewriting machine, the combination of a rotatable platen, atraveling carriage, a swingable carbon-stripping support at the rear ofsaid machine for supporting the rear of a multiple-ply work-web andinterleaved carbons, the front end of the web being connected with theplaten, said support effective when thrown forwardly to establish a loopof loose web behind the machine for permitting free movement of thecarriage, and also effective when thrown rearwardly to first'withdrawsaid web and carbons bodily rearwardly until the lower edges of thecarbons are free of the platen, and also effective, upon moving thesupport to its extreme rear position, while the 1eading edge of said webis being retained, to straighten out the web in flat condition from itspoint of connection with the platen to its point of support upon saidsupport, whereby to facilitate shifting of said carbons relatively tothe Web, and means for limiting the forward and rearward movement ofsaid support, the rearward limiting means determining the degree ofshifting the carbons to bring them into register with new forms of thework-web to be typed upon.

25. In a typewriting machine, the combination of a rotatable platen, atraveling carriage therefor, a movable support at the in troduet-oryside of said platen for the rear end of a composite loop of multiple-plywork-web and interleaved carbons, the front end of the loop beingconnected with the platen, said support being stationary when thecarriage travels and being movable rearwardly -to straighten out saidwork-Web in flat condition throughout the length thereof from saidplaten to said support, whereby to facilitate shifting of the carbonsfrom a typed section of said work-web to a new section thereof, and gagemeans for determining the proper position for said carriage prior toshifting said carbons.

26. In a typewriting machine, the combination of a rotatable platen, atraveling carriage therefor, a movable support at the introductory sideof said platen for the rear end of a compositeloop of multipleplywork-web and interleaved carbons, the-'.

shifting the carbons.

BURNHAM C. STICKNEY.

